GENUS PODICEPS. 
Podiceps. Lath. Ind. Orn. (1790.) p. 780. 
97. PODICEPS CALIFORNICUS. Vol. II. Plate LXIV. 
98. — AFFINIS. 
Salvad. Des. di Nouve Spec. Mus. Torin. 
Dr. Salvadori, having kindly sent me a drawing of the head of this bird, I am enabled to give a life-size engraving of it. It is 
immature, and appears to have considerable affinity to P. Cooperi. Lawr. "Without seeing the two together to compare, it would be 
impossible to decide upon the specific value of the present bird, and I therefore introduce it here under Dr. Salvador* name, merely 
suggesting the species to which it seems to be nearest allied. 
The original description is as follows : 
“ Podiceps supra nigricans, gems superne cinereo—griseis, infeme ac gida albis, rostro valde incurvo. Rostr. 0.058. Ala, 0.195. Tars. 
0.055. Long tot. 0.520.” 
FAMILY II-ALCILJ). 
SUB-FAMILY ALCINvE. 
GENUS FRATERCULA. 
Fralercula. Briss. Ornith. (1760). 
99. FRATERCULA GLACIAL® 
Vol. II. Plate LXV. 
GENUS LOMVIA. 
Lomvia. Ray. Syn. Meth. Av. p. 120. 
100. LOMYIA CALIF0RN1CA.=L. TROILE. 
Catarractes Californica. Bryant. Proc. Bost. Soc. X. H. (1861.) p. 11. 
This bird, separated by Dr. Bryant from the common L. Troile, rests its entire claim for specific rank upon the shape and size of its 
bill. There is no difference perceptible in the color of the plumage or general dimensions of the birds, and the slightly larger bill of the 
specimen from the Pacific coast— a character so unreliable as not to be deemed worthy of consideration in many Ornithological groups — 
should not entitle it to the position in which its describer placed it. Engravings of the natural size of the heads of this bird and 
L. Troile are here given for comparison. The example from the Pacific was loaned to me by the Secretaries of the Smithsonian Institution, 
to whom I take this opportunity of expressing my thanks, and bore upon its label the number 3,944; the other was from a specimen in 
1 the collection of the Academy of Natural Sciences in Philadelphia, whose officers have at all times given me every facility for pursuing 
my investigations, and to whom I am much indebted. 
LOMVIA TROILE. 
LOMVIA OALIFORHICA. 
